Time-Frequency Characteristics of Ultra-Wideband Signals for Radio Systems

Garbaruk, M.

doi:10.1109/mikon.2006.4345206

Cited by 8 publications

(4 citation statements)

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“…1,a,b [7]. As we see Gaussian (and Rayleigh) pulses have width of the spectrum wider than operation UWB band 3.1-10.6GHz.…”

Section: Ultrawideband Signalsmentioning

confidence: 65%

“…Another example of UWB signals is wavelet: sinusoidal wave with, for example, Gaussian envelope [7]. In case of wavelet setting proper parameters can freely form its spectrum.…”

Section: Ultrawideband Signalsmentioning

confidence: 99%

“…This paper presents results of design and investigation of UWB planar antennas obtained in Bialystok University of Technology, Poland (7)(8)(9)(10)(11)(12)(13).…”

Section: Introductionmentioning

confidence: 99%

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Ultrawideband planar antennas and antenna arrays

Chavka

2012

2012 6th International Conference on Ultrawideband and Ultrashort Impulse Signals

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The paper presents analysis of signals and planar monopole pulse antennas and antenna arrays designed for work in ultrawideband (UWB) frequency band 3.1-10.6GHz. A complex approach to design, synthesis and optimization of UWB antennas is proposed. Frequency and time characteristics of UWB signals, designed single and two-element antennas, results of experimental investigations and radiation of UWB signals by the antennas and antenna arrays are presented in the paper.

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“…1,a,b [7]. As we see Gaussian (and Rayleigh) pulses have width of the spectrum wider than operation UWB band 3.1-10.6GHz.…”

Section: Ultrawideband Signalsmentioning

confidence: 65%

“…Another example of UWB signals is wavelet: sinusoidal wave with, for example, Gaussian envelope [7]. In case of wavelet setting proper parameters can freely form its spectrum.…”

Section: Ultrawideband Signalsmentioning

confidence: 99%

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Ultrawideband planar antennas and antenna arrays

Chavka

2012

2012 6th International Conference on Ultrawideband and Ultrashort Impulse Signals

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“…A Fourier spectrogram of a continuous sine, which is a non-pulse signal in this performance, presents an almost uniform ridge parallel to the time axis (Fig.4,c,d). The last example is the superposition of the analyzed basic wavelet s B (t) and an UWB Gaussian pulse s 3 (t) [9] with parameters A=1,  =1/5ns (Fig.5,a). As in the previous cases, both signals are perfectly distinguishable on the plane of Fourier spectrograms.…”

Section: Short-time Fourier Transform -Fourier Spectrogramsmentioning

confidence: 99%

Short-time Fourier transform of ultrawideband signals

Garbaruk¹

2016

ELECTROTECHNICAL REVIEW

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The paper presents theoretical bases concerning the usage of a short-time Fourier transform for the analysis of UWB pulses. In the article there was shown the analysis of Fourier spectrograms of a base UWB wavelet interfered with other signals of different forms: UWB wavelets, an UWB Gaussian pulse and a continuous sine signal. 2D and 3D spectrograms of signals were calculated and compared to the results obtained using a normal Fourier transform. Streszczenie. W artykule omówiono wykorzystanie krótkoczasowej transformaty Fouriera do analizy sygnałów ultraszerokopasmowych UWB. Jako przykład rozpatrzono impuls falkowy UWB zakłócony innymi sygnałami o różnych formach: impulsami UWB oraz ciągłym sygnałem sinusoidalnym. Przedstawiono porównanie wyników analizy sygnałów uzyskanych za pomocą transformaty STFT i klasycznego przekształcenia Fouriera. (Transformata STFT sygnałów ultraszerokopasmowych).

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Design of Planar Monopole Pulse Antenna for Ultra-Wideband Radiocommunication Systems

Chavka

Garbaruk

2007

2007 7th International Symposium on Electromagnetic Compatibility and Electromagnetic Ecology

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A complex approach to computer-aided design and investigation of the frequency characteristics of the ultra-wideband (UWB) pulse antenna is presented in the paper. The base of design antenna algorithm is worked out. A planar monopole pulse ultra-wideband antenna for use in radiocommunication systems is proposed. Design of the antenna is discussed and frequency characteristics, current and near electromagnetic field distributions are presented. Obtained results may be effectively used for the evaluation of EMC properties of UWB radiocommunication systems. Introduction Ultra-wideband (UWB) radiocommunication systems have recently received more and more attention as a medium for a high-data-rate short-range wireless link [1][2][3]. The Federal Communication Commission (FCC) allowed UWB communication in the 3.1-10.6GHz band and using signals having a -10dB bandwidth greater than 500MHz and maximum EIRP spectral density of -41.3 dBm/MHz [1]. There are main advantages of UWB radio systems: extremely low power consumption, high data rates, and simple hardware configuration. The most interesting approach of the UWB radio system is socalled impulse radio. Its basic concept is to transmit and receive very short electromagnetic pulses (few tens of picoseconds to few nanoseconds in duration) with corresponding spectrum range to few GHz.The wide band of UWB signals, despite benefits makes often a problem for design of the base elements of radiocommunication systems.There are many publications about design and properties of UWB radio systems in last several years. Bases of structures of UWB systems and overview of the whole UWB subject: history, standards, generation, transmitting, radiation, propagation and receiving of UWB signals are described in [2][3][4]. It is published a special prototyping platform for an investigation of UWB communication (without detailed time and frequency characteristics) and frequency-and time-domain characteristics of patch antenna (range from 3 to 6GHz only) for use in medical WBAN (Body) systems.Very interesting material about property radiation of UWB signals with the space length much lesser from physical length of the given travel-wave antenna is described in [5]. Practical applications of ultra-wideband radars for different technical and scientific problems are presented in [6].However it is still very actually to design and investigate time and frequency characteristics of the ultrawideband pulse (monopole and planar, too) antenna for use in entire WPAN frequency band 3.1-10.6GHz.The first results of our investigations of this problem are represented in [7][8][9][10][11].Time-domain and frequency characteristics of different ultra-wideband signals for use in radiocommunication systems are published in [7,8]. Design and simulation of pulse antenna for ultra-wideband WPAN communication and EMC electromagnetic analysis of such antenna are described in [9,10].This paper presents a complex approach to computer-aided design and results of the investigation of the ultra-wideband (UWB) monopole pl...

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Time-Frequency Characteristics of Ultra-Wideband Signals for Radio Systems

Cited by 8 publications

References 1 publication

Ultrawideband planar antennas and antenna arrays

Ultrawideband planar antennas and antenna arrays

Short-time Fourier transform of ultrawideband signals

Design of Planar Monopole Pulse Antenna for Ultra-Wideband Radiocommunication Systems

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